Results 11 to 20 of about 90,567 (226)
Saving Planetary Systems: Dead Zones and Planetary Migration [PDF]
The Astrophysical Journal, 2007 The tidal interaction between a disk and a planet leads to the planet's migration. A long-standing question regarding this mechanism is how to stop the migration before planets plunge into their central stars. In this paper, we propose a new, simple mechanism to significantly slow down planet migration, and test the possibility by using a hybrid ...
Matsumura, Soko +2 more
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Dust Settling and Rapid Planetary Migration [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 16 pages, 13 figures, 3 tables, accepted for publication in ...
Hasegawa, Yasuhiro, Pudritz, Ralph E.
core +4 more sources
PLANETARY MIGRATION IN EVOLVING PLANETESIMAL DISKS [PDF]
International Journal of Modern Physics D, 2003 In the current paper, we further improved the model for the migration of planets introduced and extended to time-dependent planetesimal accretion disks by Del Popolo. In the current study, the assumption of Del Popolo, that the surface density in planetesimals is proportional to that of gas, is relaxed. In order to obtain the evolution of planetesimal
Yesilyurt, IS, Ercan, EN, Del Popolo, A
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RESONANT REMOVAL OF EXOMOONS DURING PLANETARY MIGRATION [PDF]
The Astrophysical Journal, 2016 ABSTRACT Jupiter and Saturn play host to an impressive array of satellites, making it reasonable to suspect that similar systems of moons might exist around giant extrasolar planets. Furthermore, a significant population of such planets is known to reside at distances of several Astronomical Units (AU), leading to speculation that some ...
Christopher Spalding +2 more
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How planetary growth outperforms migration [PDF]
Astronomy & Astrophysics, 2019 Planetary migration is a major challenge for planet-formation theories. The speed of type-I migration is proportional to the mass of a protoplanet, while the final decade of growth of a pebble-accreting planetary core takes place at a rate that scales with the mass to the two-thirds power. This results in planetary growth tracks (i.e., the evolution of
Johansen, Anders +2 more
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Origin of compact exoplanetary systems during disk infall [PDF]
Nature CommunicationsExoplanetary systems that contain multiple planets on short-period orbits appear to be prevalent in the current observed exoplanetary population, yet the processes that give rise to such configurations remain poorly understood.
Raluca Rufu, Robin M. Canup
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Planetary migration in gaseous protoplanetary disks [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractTides come from the fact that different parts of a system do not fall in exactly the same way in a non-uniform gravity field. In the case of a protoplanetary disk perturbed by an orbiting, prograde protoplanet, the protoplanet tides raise a wake in the disk which causes the orbital elements of the planet to change over time.
F. Masset
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Tilting Jupiter (a bit) and Saturn (a lot) During Planetary Migration [PDF]
, 2015 We study the effects of planetary late migration on the gas giants obliquities. We consider the planetary instability models from Nesvorny & Morbidelli (2012), in which the obliquities of Jupiter and Saturn can be excited when the spin-orbit resonances ...
D. Vokrouhlický, David Nesvorný
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Failed Oort Clouds and Planetary Migration [PDF]
, 2000 TeX, 3 pages plus 3 postscript figures. submitted to Ap.
Brad M. S. Hansen
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Type I Planetary Migration in a Self‐Gravitating Disk [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractWe investigate the impact of the disk self-gravity on type I migration. We first show that considering a planet migrating in a disk without self-gravity can lead to a significant overestimate of the migration rate. Unbiased drift rates can be obtained only if the planet and the disk feel the same gravitational potential.
C. Baruteau, F. Masset
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